oxidation-reduction

I am having trouble with this question: I want to know if I have the correct answer (my answer is  at the bottom.

  Observations:
i)  A reacts spontaneously with 1 mol/L BNO3, 1 mol/L D(NO3)2 and dilute sulfuric acid.  A does not react with 1 mol/L C(NO3)2

ii)  B does not react spontaneously with any of the 1 mol/L solutions above or with dilute sulfuric acid.

iii)  C reacts spontaneously with dilute sulfuric acid and with 1 mol/L solutions of all the other metallic salts.

iv)  D reacts spontaneously with 1 mol/L BNO3.  It does not react with dilute sulfuric acid.

a)  Use the observations and arrange the following five reduction half-cell reactions in order, the one with the largest positive reduction potential listed first.

A2  +  2e-     A(s)
B+  +  e-       B(s)
C2+ +  2e-     C(s)
D2+ +  2e-     D(s)
2H+ + 2e-     H2(g)

My answer:  is it correct?  

C
A
D
2H + 2e  H2
B